Hydrous icaritin nanorods with excellent stability improves the in vitro and in vivo activity against breast cancer

Due to their various biological activities that are beneficial to human health and antitumor effect, flavonoid compounds have attracted much attention in recent years. Hydrous icaritin (HICT) was such a flavonoid that can inhibit the growth of breast cancer and cancer stem cells. In order to overcom...

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Main Authors: Yian Wang, Tiantian Huang, Haowen Li, Jingxin Fu, Hui Ao, Likang Lu, Meihua Han, Yifei Guo, Feng Yue, Xiangtao Wang
Format: Article
Language:English
Published: Taylor & Francis Group 2020-01-01
Series:Drug Delivery
Subjects:
Online Access:http://dx.doi.org/10.1080/10717544.2020.1716877
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author Yian Wang
Tiantian Huang
Haowen Li
Jingxin Fu
Hui Ao
Likang Lu
Meihua Han
Yifei Guo
Feng Yue
Xiangtao Wang
author_facet Yian Wang
Tiantian Huang
Haowen Li
Jingxin Fu
Hui Ao
Likang Lu
Meihua Han
Yifei Guo
Feng Yue
Xiangtao Wang
author_sort Yian Wang
collection DOAJ
description Due to their various biological activities that are beneficial to human health and antitumor effect, flavonoid compounds have attracted much attention in recent years. Hydrous icaritin (HICT) was such a flavonoid that can inhibit the growth of breast cancer and cancer stem cells. In order to overcome the insolubility problem, HICT was fabricated into nanorods (NRs) through anti-solvent precipitation in this paper using D-α tocopherol acid polyethylene glycol succinate and sodium oleate as a co-stabilizer meanwhile using the mixture of ethanol and acetone (1:2, v/v) as the organic solvent. The obtained HICT NRs showed an average particle size 222.0 nm with a small polydispersity index value of 0.124 and a high zeta potential of – 49.5 mV. HICT NRs could maintain similar particle size in various physiological medium and could be directly lyophilized without the addition of any cytoprotectants and then reconstituted into a colloidal system of similar size. The resultant HICT NRs had a high drug loading content of 55.6% and released HICT in a steady and constant pattern. MTT assay indicated NRs enhanced HICT’s antitumor activity to ninefold against MCF-7 breast carcinoma cells. In vivo studies demonstrated oral administration free HICT had almost no tumor inhibitory effect while HICT NRs showed a tumor inhibition rate of 47.8%. When intravenously injected, HICT NRs displayed similar therapeutic efficacy to paclitaxel injections (70.4% vs. 74.5%, TIR). This may be partly due to the high accumulation of the injected HICT NRs in tumor ranking only second to that in the liver but much higher than in other organs. These results demonstrated that HICT NRs could be a promising antitumor agent for the treatment of breast cancer in clinic.
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spelling doaj.art-eb671a5223194b278ebc7d3e679c7e192022-12-21T21:58:50ZengTaylor & Francis GroupDrug Delivery1071-75441521-04642020-01-0127122823710.1080/10717544.2020.17168771716877Hydrous icaritin nanorods with excellent stability improves the in vitro and in vivo activity against breast cancerYian Wang0Tiantian Huang1Haowen Li2Jingxin Fu3Hui Ao4Likang Lu5Meihua Han6Yifei Guo7Feng Yue8Xiangtao Wang9Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical CollegeSchool of Pharmacy, Henan University of Traditional Chinese MedicineInstitute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical CollegeInstitute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical CollegeInstitute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical CollegeInstitute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical CollegeInstitute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical CollegeInstitute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical CollegeGuangdong Jiabo Pharmaceutical Co. LtdInstitute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical CollegeDue to their various biological activities that are beneficial to human health and antitumor effect, flavonoid compounds have attracted much attention in recent years. Hydrous icaritin (HICT) was such a flavonoid that can inhibit the growth of breast cancer and cancer stem cells. In order to overcome the insolubility problem, HICT was fabricated into nanorods (NRs) through anti-solvent precipitation in this paper using D-α tocopherol acid polyethylene glycol succinate and sodium oleate as a co-stabilizer meanwhile using the mixture of ethanol and acetone (1:2, v/v) as the organic solvent. The obtained HICT NRs showed an average particle size 222.0 nm with a small polydispersity index value of 0.124 and a high zeta potential of – 49.5 mV. HICT NRs could maintain similar particle size in various physiological medium and could be directly lyophilized without the addition of any cytoprotectants and then reconstituted into a colloidal system of similar size. The resultant HICT NRs had a high drug loading content of 55.6% and released HICT in a steady and constant pattern. MTT assay indicated NRs enhanced HICT’s antitumor activity to ninefold against MCF-7 breast carcinoma cells. In vivo studies demonstrated oral administration free HICT had almost no tumor inhibitory effect while HICT NRs showed a tumor inhibition rate of 47.8%. When intravenously injected, HICT NRs displayed similar therapeutic efficacy to paclitaxel injections (70.4% vs. 74.5%, TIR). This may be partly due to the high accumulation of the injected HICT NRs in tumor ranking only second to that in the liver but much higher than in other organs. These results demonstrated that HICT NRs could be a promising antitumor agent for the treatment of breast cancer in clinic.http://dx.doi.org/10.1080/10717544.2020.1716877flavonoidshydrous icaritinnanorodsanti-breast cancer
spellingShingle Yian Wang
Tiantian Huang
Haowen Li
Jingxin Fu
Hui Ao
Likang Lu
Meihua Han
Yifei Guo
Feng Yue
Xiangtao Wang
Hydrous icaritin nanorods with excellent stability improves the in vitro and in vivo activity against breast cancer
Drug Delivery
flavonoids
hydrous icaritin
nanorods
anti-breast cancer
title Hydrous icaritin nanorods with excellent stability improves the in vitro and in vivo activity against breast cancer
title_full Hydrous icaritin nanorods with excellent stability improves the in vitro and in vivo activity against breast cancer
title_fullStr Hydrous icaritin nanorods with excellent stability improves the in vitro and in vivo activity against breast cancer
title_full_unstemmed Hydrous icaritin nanorods with excellent stability improves the in vitro and in vivo activity against breast cancer
title_short Hydrous icaritin nanorods with excellent stability improves the in vitro and in vivo activity against breast cancer
title_sort hydrous icaritin nanorods with excellent stability improves the in vitro and in vivo activity against breast cancer
topic flavonoids
hydrous icaritin
nanorods
anti-breast cancer
url http://dx.doi.org/10.1080/10717544.2020.1716877
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